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Question
Some receptors diminish the extent of their depolarization despite sustained stimulus strength, a phenomenon called ____.a. reduction
b. depolarizing
c. ionization
d. evolution
e. adaptation
Answer
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Related questions
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Describe how hydrogen ion secretion impacts acid-base balance.
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The plasma clearance rate of a substance filtered, but not reabsorbed or secreted, always equals the __________.
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a. True
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a. True
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The plasma clearance rate for a secreted substance is always less than the glomerular filtration rate.
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a. True
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a. True
b. False
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The loop of Henle forms a sharp U-shaped or hairpin loop that surrounds the renal cortex.
a. True
b. False
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What does micturition mean?
a. The process of bladder emptying or urination
b. The process of filtration through the glomerulus
c. The acidification of urine
d. The final filtration of urine
e. A urinary bacterial infection
Q:
What happens when the hydrogen ion concentration in the body fluids is too low?
a. Oxygen absorption increases.
b. Hydrogen absorption increases.
c. Hydrogen absorption decreases.
d. Hydrogen secretion increases.
e. Hydrogen secretion decreases.
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The most prevalent ions secreted by the tubules are:
a. sodium and chloride
b. sodium and hydrogen
c. sodium and potassium
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a. potassium
b. chloride
c. sodium
d. glucose
e. phosphorus
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How are glucose and amino acids reabsorbed in the proximal tubule?
a. primary passive transport
b. secondary passive transport
c. primary active transport
d. secondary active transport
e. simple diffusion
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What are the two major control mechanisms that regulate the glomerular filtration rate (GFR)?
a. internal regulation and intrinsic parasympathetic control
b. autoregulation and intrinsic sympathetic control
c. internal regulation and extrinsic parasympathetic control
d. autoregulation and extrinsic sympathetic control
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a. True
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a. True
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a. True
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a. chest muscles
b. abdominal muscles
c. intercostal muscles
d. bronchioles
e. diaphragm
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Generation of respiratory rhythm is now known to lie in the:
a. medullary respiratory center
b. pneumotaxic center
c. respiratory modulator
d. pre-Btzinger complex
e. apneustic center
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The most important factor determining the percentage of hemoglobin saturation is the:
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c. pH of the blood
d. PCO2 of the blood
e. PO2 of the blood